请在第39处填上正确答案。

A．obscure

B．difficult

C．impossible

D．unable　　┠考试大^o^在线^*^考试中心┨

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参考答案

unable意为“不可能的”，常用于be unable to do sth．的结构，主语大多是人。A项obscure意为“暗的，模糊的”；B项difficult意为“困难的”；C项impossible意为“不可能的；无法忍受的”。B、C两项不能用于此结构中。

1 请在第40处填上正确答案。

A．case

B．means

C．method

D．way

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2 Nurse: _________ Can I help you?
Caller: Hello. My Wife is Dr.Tutiler's patient, and she is not feeling well this morning.

A．DTutiler's offic

B．This is Mar

C．Welcome to DTutiler's offic

D．Thank you for callin

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3 A: I' m going to pop out to get a sandwich. _________
B: No, thank you. I' m all right.

A．How can I help you?

B．What can 1 do for you?

C．Can I get you anything?

D．I'll be back in a minut

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